The neutral oxide among the following is

The silicate having one monovalent corner oxygen atom in each $SiO_4$ tetrahedron unit is:

Which of the following acids is formed when $SiF_4$ reacts with water?

Assertion $(A)$: Graphite is used as a dry lubricant in machines which run at high temperatures.
Reason $(R)$: The layers of graphite slip one over the other when pressure is applied.
The correct option among the following is:

Carbon and germanium belong to the $14^{th}$ group. The maximum coordination number of carbon is less than germanium,because of

In the following reaction,identify the nature of the product formed by the complete hydrolysis of the underlined atom at $R.T.$:
$\underline{P}_4O_6 + H_2O \longrightarrow H_3PO_3$